Vehicle airbag
A vehicle includes a front bulkhead. The vehicle includes an airbag inflatable from an uninflated position to an inflated position adjacent the bulkhead. The vehicle includes a track fixed relative to the bulkhead. The vehicle includes a slider fixed to the airbag and slidable along the track between a first position when the airbag is in the uninflated position and a second position when the airbag is in the inflated position.
1. A vehicle, comprising:
a front bulkhead;
a seat having a seating surface;
an airbag inflatable from an uninflated position to an inflated position adjacent the bulkhead, the airbag in the inflated position includes a bottom edge that is lower than the seating surface;
a track fixed relative to the bulkhead; and
a slider fixed to the airbag and slidable along the track between a first position when the airbag is in the uninflated position and a second position when the airbag is in the inflated position.
2. The vehicle of claim 1 , further comprising a retractor fixed relative to the bulkhead and operatively coupled to the slider.
3. The vehicle of claim 2 , wherein the retractor includes a pyrotechnic rotary actuator operatively coupled to the slider with a cable.
4. The vehicle of claim 1 , wherein the airbag in the inflated position is located relative to the seat to control movement of knees of a test dummy in the seat during a vehicle front impact.
5. The vehicle of claim 1 , further comprising a retainer supported relative to the track and configured to maintain the slider in the second position.
6. The vehicle of claim 1 , further comprising a stop fixed relative to the track at the second position.
7. The vehicle of claim 1 , further comprising a second track fixed relative to the bulkhead and a second slider fixed to the airbag and slidable along the second track.
8. The vehicle of claim 7 , wherein the track is spaced from the second track along a vertical axis.
9. The vehicle of claim 7 , wherein the track is spaced from the second track along a cross-vehicle axis.
10. The vehicle of claim 1 , wherein the track is elongated along a vertical axis.
11. The vehicle of claim 1 , further comprising a pillar, the track fixed to the pillar.
12. The vehicle of claim 1 , wherein the front bulkhead includes an instrument panel.
13. The vehicle of claim 12 , wherein the track is beneath the instrument panel.
14. The vehicle of claim 12 , wherein the airbag in the uninflated position is elongated along a cross-vehicle axis and is beneath the instrument panel.
15. The vehicle of claim 1 , wherein the airbag defines an inflation direction that is inboard along a cross-vehicle axis.
16. The vehicle of claim 1 , wherein the airbag defines an inflation direction that is upward along a vertical axis.
17. The vehicle of claim 1 , wherein the airbag defines an inflation direction that is downward along a vertical axis.
18. The vehicle of claim 1 , further comprising a second airbag inflatable from an uninflated position to an inflated position adjacent bulkhead, the airbag and the second airbag inflating toward each other.
19. A vehicle, comprising:
a front bulkhead;
an airbag inflatable from an uninflated position to an inflated position adjacent the bulkhead;
a track fixed relative to the bulkhead, the track elongated along a cross-vehicle axis; and
a slider fixed to the airbag and slidable along the track between a first position when the airbag is in the uninflated position and a second position when the airbag is in the inflated position.
20. The vehicle of claim 19 , wherein the track is beneath the instrument panel.